The invention discloses an integrated synthesis reaction kettle for production of lead sulfate tribasic. The integrated synthesis reaction kettle comprises a worktable, wherein a beam frame and an acetic acid purifying box are arranged at the top part of the worktable; a kettle body is arranged at the top part of the worktable; vibrators are symmetrically arranged at the left side and the right side of the bottom part of an inner cavity of the kettle body; an inner kettle is arranged at the top part of each vibrator; the top part of the kettle body is fixedly connected with a limiting lug; thetop part of the inner kettle is fixedly connected with a flange; a heating plate is arranged on the outside wall of the inner kettle; a material discharge pipe is arranged at the bottom part of the inner kettle; a kettle cover is arranged at the top part of the flange; a material charge hopper is arranged at the left side of the top part of the kettle cover; the right side of the top part of thekettle cover is provided with a steam opening; the steam opening is communicated with the acetic acid purifying box through a guide pipe; a stirring motor is arranged at the top part of the transverseplate; a stirring shaft is arranged at the power output end of the bottom part of the stirring motor; stirring blades are symmetrically arranged at two sides of the stirring shaft. The integrated synthesis reaction kettle has the advantages that the structural design is reasonable, the content of lead sulfate tribasic exhausted into air is favorably reduced, and the injury to surrounding environments and populations is reduced.